STP1328

    Liquid Formulations of Non-Spore Forming Microorganisms

    Published: Jan 1997


      Format Pages Price  
    PDF (84K) 5 $25   ADD TO CART
    Complete Source PDF (5.8M) 5 $89   ADD TO CART


    Abstract

    Biological formulations have evolved from the use of organic based solids such as peat as a preservative and delivery system to water based carriers. Water based formulations provide more convenience for the end user. Innovations in media preparation, stabilizing agents and packaging have led to stable formulations of non-spore forming microorganisms.

    Liquid media for biological formulations contain either minimal nutrient levels packaged in air impermeable containers, or very high nutrient levels packaged in oxygen permeable plastic. Soluble polysaccharides (particularly alginates) can be used as stabilizing agents. Also, concentrated pastes of cells which are kept frozen until use, lyophilized powders, and oil suspensions are available. Two important points for the successful liquid formulation of a biological are long term stability (1 to 2 years) and effectivity at the site of use.

    Keywords:

    biologicals, inoculants, Rhizobia, alginates, peat, water formulation


    Author Information:

    Wacek, TJ
    Dir. of R & D, Urbana Laboratories, St. Joseph, MO


    Paper ID: STP13835S

    Committee/Subcommittee: E35.22

    DOI: 10.1520/STP13835S


    CrossRef ASTM International is a member of CrossRef.